You can access hashed_parameters, hashed_query_parameters, hashed_body_parameters to get access to parameters as to hashes. Also you can use hashes_params, hashed_query_params and hashed_body_params as shortcuts. Or, if you too lazy, you can use hparams, hquery_params and hbody_params :)

Note, that this trait gives you read-only version of params, query_params and body_params respectively. Also note, that any change to any of three above <WILL NOT HAVE> any effect to all of hashed*params.